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Raise your standard of listening

Denon's DA-300USB digital-to-analog converter allows your computer and your hi-fi system or headphones to make beautiful music together. This desktop friendly DAC accepts digital audio files stored on or streamed over the Internet from your PC via USB, bypassing your computer's built-in sound card to create an eye-opening listening experience. You'll hear layers of musical detail previously obscured by the noisy environment inside your PC — the warm, natural decay of a guitar chord, or reverberations echoing in a concert hall. On your best recordings, each instrument and vocal will stand out clearly and distinctly in its own separate space, allowing you to follow each one note-for-note.

The DA-300USB can also breathe new life into CD/DVD disc players, set-top boxes, HDTVs, or game consoles. Simply connect it to your player's optical or coaxial digital output to experience added depth, clarity, and focus on your favorite soundtracks.

The compact DA-300USB can be placed vertically or horizontally, so it fits just about anywhere.

High-res should be its middle name

If you're into downloading high-resolution audio from websites like HDtracks, 2L, or Blue Coast Records, you'll love the DA-300USB. Not only can it make your MP3 and CD-quality music sound fantastic, it also decodes high-res audio files up to 24-bit/192kHz resolution, so you can enjoy better-than-CD audio quality (Free USB driver download required for Windows® PC playback.). And this DAC is one of the most affordable DSD-capable models available, supporting both 2.8MHz and 5.6MHz DSD digital audio signals for bit-transparent playback of those high-res digital music files. The DA-300USB uses Denon's Advanced AL32 Processing to upsample incoming digital audio to a 32-bit, 192kHz datastream to resolve finer detail, even from compressed music sources.

High performance that's easy to use

Denon packed a lot of premium parts inside the DA-300USB then meticulously tuned them for optimum sound quality. The USB connection employs asynchronous re-clocking technology. This advanced design precisely controls the timing of your computer's USB output for vanishingly low levels of jitter — errors in the timing of the data stream that can make music sound harsh and edgy, and smear subtle details. Independent crystal oscillators for 44.1- and 48kHz-based sample rates further reduce jitter to improve performance. A noise-isolating circuit design prevents distortion via the USB connection from computer generated digital noise. And Denon included a premium quality headphone amplifier with an independent volume control to provide clear, dynamic sound for private listening.

You won't find a lot of unnecessary buttons cluttering the streamlined DA-300USB. There's a large knob for headphone volume and a soft-touch button for selecting your music source. A high-resolution OLED display shows the selected input source, the incoming sample rate of your music, and headphone volume. The DAC's compact enclosure can stand vertically on your desktop or a bookshelf to save space, or be placed horizontally in a component rack or cabinet. Plus, the display even rotates automatically with horizontal or vertical positioning of the DAC, so it's always easy to read.

Turn 1s and 0s into sweet sounding music

Why buy a separate DAC? These devices are all about getting true high-fidelity sound from digital sources like computers, streaming music players, smartphones, and more. While these kinds of sources usually have their own digital-to-analog converters built in, you can expect a separate DAC to give you much better accuracy and finer detail.

Product Research

Features

DAC + Headphone Amp: Denon's DA-300USB combination D/A converter and
headphone amplifier elevates your computer-sourced digital audio tracks and
other digital music sources to purist audiophile levels, delivering superb sound
quality without compromise. Equipped with a range of advanced digital
technologies, the DA-300USB connects via asynchronous USB to the computer and
features the ability to decode both PCM (traditional digital audio format) and
DSD (Direct Stream Digital; the advanced digital audio format of SACD). It also
has SPDIF (coaxial/optical) inputs for upgrading the sound of your HDTV, disc
player, or game console. The DA-300USB is fitted with an analog line-level
output and headphone amplifier for connection to your home entertainment system
or high-quality headphones.

32-Bit/192kHz DAC: At the heart of the Denon DA-300USB is the high
resolution PCM1795 D/A converter, which features advanced segment 32-bit
architecture along with the ability to handle up to 192kHz PCM sample rates as
well as the ability to decode both 2.8Mhz and 5.6Mhz high resolution DSD files
(either natively decoded or via DoP - DSD over PCM).

Note: To prevent audio quality from degrading due to noise from external
devices when this unit is connected to external devices such as computers, the
ground circuit for the USB input interface device is isolated from the audio
circuit.

Compatible Music Formats: Practically any digital audio format that
can be played from your computer's own media player can be processed by the
DA-300USB; including MP3 (up to 48kHz), AAC (up to 48kHz), ALAC (up to 96kHz),
WAV (up to 192kHz), FLAC (up to 192kHz), and DSD (2.8224/5.6448 MHz).

Optical & Coaxial Digital Inputs: For connection to other digital
audio sources other than your computer, the DA-300USB also features three
digital audio inputs; two optical (toslink) and one coaxial (RCA). Now you can
enjoy greatly improved sound quality from your HDTV, satellite or cable box,
game console, or disc player. The optical and coaxial digital inputs will
support digital audio up to 24-bit/192kHz (2ch PCM only).

Analog Outputs: For the purest audiophile grade sound quality, the
DA-300USB is equipped with separate audio output circuits for the analog
line-level outputs and the headphone output.

Headphone Amp: The headphone amplifier block features dedicated
buffer and gain stages, and is compatible with the widest range of headphone
types, including low-impedance models. The front-panel headphone jack
features a standard-sized 1/4" connector, along with a convenient volume
control.

Line-Level Outputs: The line-level outputs are high quality
RCA-type connectors, with full 2Vrms output for compatibility with integrated
amplifiers, pre-amplifiers, and other analog audio components.

Audiophile-Grade Construction: The Denon DA-300USB features
audiophile grade
construction with the high-quality component parts and circuit design. Housed in
a sleek casing, the DA-300USB features seven separate printed circuit boards, to
ensure the highest isolation between circuit blocks. To ensure the most stable
and accurate digital audio and timing data at the critical D/A converter stage,
the DA-300USB also features advanced isolator chips that combine high speed CMOS
technology with unique on-chip micro air-core transformers. A total of 9
isolator chips are employed, with 18 channels of isolation, delivering superior
common mode noise rejection and maximum protection against digital noise
transfer between critical stages, compared to conventional optoisolators.

Front-Panel Display: The elegant front-panel of the Denon DA-300USB features an
advanced OLED display that provides clear indication of the input selected,
along with the audio file type (PCM, DSD), the sampling frequency and the
headphone volume level. The touch-sensitive controls lets you easily cycle
through the various modes. The display does not indicate track or
song/artist/album information of your music source.

External Power Supply: Powered by a 15V/1A AC adapter, the DA-300USB
features sophisticated DC power conversion technology with a power block that
delivers separate DC voltage sources to power the various stages.

Note: You can set the DA-300USB to automatically switch to "Standby Mode" if the
unit is not operated for 30 minutes when there is no audio input.

Mounting Options: You can choose to mount the DA-300USB either
vertically or horizontally, depending upon your equipment configuration. An
internal sensor detects the chosen orientation, and rotates the OLED display
data accordingly. A custom bottom plate is provided for vertical orientation.

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Blu Ray Blues

Written By All Thumbs, Stone Mountain, GA on Tuesday, February 17, 2015

Needed a DAC because I have sources with no RCA outputs and use a passive preamp. This worked with all my sources excepts for Blu Ray DVDs. When the input is a Blu Ray it just says "Unsupported" but with a standard DVD it works. It worked with my XM Radio tuner, FM HD, Internet Radio, pc and TV box. Strangely the CD that comes with it takes you to the Denon web site and installs USB drivers for your pc. Wouldn't work with built in Windows USB. Both this DAC and the RCAs sound fine. Don't have superhuman ears.

I've never heard DSD sound so good

This is my first DAC so I can't compare it to anything else, but I am very happy with it. The main reasons I purchased this model are because it had 2xDSD capability and it was made by Denon. I bought the Denon 100th Anniversary AVR and Universal Blu-ray player from Crutchfield a few years ago and have been happy with that setup, which plays DSD over the Denon Link. I liked the sound of my SACDs on that system, but I usually crank up the subwoofer because they sound "thin" compared to PCM sources. I was surprised to hear how full the sound of my DSD files are when played through this DAC. No bass adjustment needed. In fact, to my ears, the difference between DSD and PCM is even more clear now. As I understand it, this DAC has the same technology that the 100th Anniversay SACD player had, which was better than the Universal Blu-ray player that I purchased. The construction is very impressive. It is heavy which is normally a good thing, but I bought it for when I travel, so it adds weight to my bag but it is worth it. I've only listened to it using headphones so far but I am planning on using it with my Denon AVR also.